Dental bleaching compositions, kits & methods
US6149895A · kind A · utility
105Cited by
22References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 30, 1999 |
| Grant date | Nov 21, 2000 |
| Priority date | — |
| Expiry date | Jul 30, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/81
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A composition and method for bleaching teeth is disclosed wherein red dye is dissolved in a solvent and combined with an inert, inorganic carrier. The composition is mixed chairside by the dental practitioner, with a source of active oxygen to form a bleaching paste, which is applied to prepared teeth. Teeth coated with the paste are then exposed to light of a visible wavelength range of from 400-550 or an argon laser. When the active oxygen is spent, the bleaching paste on the teeth turns colorless. The red dye greatly accelerates the bleach time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.